I would have gone to visit him in the hospital had it been at all possible, but I_______ fully occupied the whole of last week.
A.were
B.had been
C.have been
D.was
网友回答
D解析考查时态。I would have gone to visit him in the hospital had it been at all possible是含有虚拟语气的句子；but I_______ fully occupied the whole of last week.是真实的情况，要用陈述语气，再根据时间状语last week，可知要用一般过去式。所以选D。